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dc.contributorVirginia Tech
dc.contributor.authorKarevski, D.
dc.contributor.authorPlatini, T.
dc.date.accessioned2013-12-10T17:31:18Z
dc.date.available2013-12-10T17:31:18Z
dc.date.issued2009-05-22
dc.identifier.citationKarevski, Dragi ; Platini, Thierry, May 22, 2009. “Quantum Nonequilibrium Steady States Induced by Repeated Interactions,” PHYSICAL REVIEW LETTERS 102(20): 207207. DOI: 10.1103/PhysRevLett.102.207207en_US
dc.identifier.issn0031-9007
dc.identifier.urihttp://hdl.handle.net/10919/24498
dc.description.abstractWe study the steady state of a finite XX chain coupled at its boundaries to quantum reservoirs made of free spins that interact one after the other with the chain. The two-point correlations are calculated exactly, and it is shown that the steady state is completely characterized by the magnetization profile and the associated current. Except at the boundary sites, the magnetization is given by the average of the reservoirs' magnetizations. The steady-state current, proportional to the difference in the reservoirs' magnetizations, shows a nonmonotonic behavior with respect to the system-reservoir coupling strength, with an optimal current state for a finite value of the coupling. Moreover, we show that the steady state can be described by a generalized Gibbs state.en_US
dc.language.isoen_US
dc.publisherAmerican Physical Society
dc.subjecttonks-girardeau gas
dc.subjectstatistical-mechanics
dc.subjectimpenetrable bosons
dc.subjectxy
dc.subjectchain
dc.subjectrelaxation
dc.subjectcurrents
dc.subjectsystems
dc.subjectenergy
dc.subjectmodel
dc.subjectPhysics
dc.titleQuantum Nonequilibrium Steady States Induced by Repeated Interactions
dc.typeArticle
dc.identifier.urlhttp://link.aps.org/doi/10.1103/PhysRevLett.102.207207
dc.date.accessed2013-12-10
dc.title.serialPhysical Review Letters
dc.identifier.doihttps://doi.org/10.1103/PhysRevLett.102.207207


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